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Mass Number and Representation of Atom

The atomic ma...

Question

The atomic mass of hydrogen atom is ________.

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Solution

Atomic mass of hydrogen is taken as the standard unit.
The atomic mass of1/12^th part of a C-12 isotope is called Atomic Mass Unit ( amu )
Hydrogen is the lightest element with atomic mass 1amu.
It has only one proton in the nucleus.
Therefore atomic mass of a hydrogen is atom is 1amu.

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Mass Number and Representation of Atom

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